January · Greece
Best time to visit Ios in January Weather, crowds & prices
Weather in Ios in January
Average temperature 15°C, 78 mm of rain, about 1 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
2.3/10
Ranked #12 of 12 months
- Avg temp
- 15°C
- Rainfall
- 78 mm
- Humidity
- 74%
- Days with 6h+ sun
- 1
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
January in Ios scores 2.3/10 for beach and coastal travel - ranked #12 of 12. Expect around 15°C, 78 mm of rain, and roughly 1 days with 6+ hours of sunshine this month.
Ios mixes a hilltop Cycladic town, sandy Mylopotas beach and a famously busy summer nightlife scene.
January in Ios: expect compromises
January averages 15°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 78 mm, so plan one flexible day in three; you still get about 1 days with 6+ hours of sunshine and 9.8 hours of daylight.
It scores 2.3/10 here, 12th of 12 months, against 9.8/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? June scores 7.5 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Ios in January?
- In January, Ios averages 15°C, 78 mm of rain, and about 1 days with 6+ hours of sunshine. Its climate-comfort score is 2.3/10.
- Is January a good time to visit Ios?
- January earns a 2.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Ios in January?
- Expect about 78 mm of rain in January. Average humidity is 74% and there are about 1 days with 6+ hours of sunshine.
Curated in Ios
Tickets & experiences
Things to do in Ios
Ios, Greece. Live activities and tours from GetYourGuide, matched to this destination.